(2R,3S)-2-((1'S,2'S,3'S)-3'-(4-methoxybenzyloxy)-2'-methyl-5'-methylenecyclopentyl)-5-oxotetrahydrofuran-3-carbaldehyde 、
2-methyl-2-propenylsilane 在
三氟化硼乙醚 作用下,
反应 16.0h,
以70%的产率得到(4R,5R)-4-(1''-hydroxy-3''-methylbut-3''enyl)-5-((1'S,2'S,3'S)-3'-(4-methoxybenzyloxy)-2'-methyl-5'-methylenecyclopentyl)dihydrofuran-2(3H)-one